Home / 1,447,281.78-2,169,390.54-486,823.08

Finding the Fourth Proportional to 1,447,281.78, 2,169,390.54 and 486,823.08

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Solution

The fourth proportional to 1,447,281.78, 2,169,390.54 and 486,823.08 is: 729,719.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447,281.78 : 2,169,390.54 = 486,823.08 : x
  2. Step 2: Convert to fraction form
    1,447,281.78/2,169,390.54 = 486,823.08/x
  3. Step 3: Cross multiply
    1,447,281.78x = 2,169,390.54 × 486,823.08
  4. Step 4: Simplify right side
    1,447,281.78x = 1,056,109,384,405.66
  5. Step 5: Solve for x
    x = 1,056,109,384,405.66/1,447,281.78
  6. Step 6: Final answer
    x = 729,719.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.